- Date
- November 29, 2009, 15:12 local (23:12 UTC)
- Place
- Zillah, WA
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N480DMMahre Starduster SA300
- Defining event
- Maneuvering: Low altitude operation/event
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 6, 2010
- Report
- Approved by Office Director
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- FAA report
- 20091129051669A
- Case key
- 75107
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot’s failure to maintain aircraft control during a low-altitude maneuver.
Findings · 2
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The pilot reported that he was conducting a low-level, high-speed, pass over a remote control airplane airstrip. He stated that during the pass he pulled up and rolled the airplane. About halfway through the roll he lost sight of the horizon and stated that he "knew I was in trouble." The airplane impacted the ground shortly thereafter. Spectators at the airstrip reported that the pilot flew from southeast to northwest, and performed a fly-by approximately 20 to 30 feet above ground level. At the end of the airstrip, the airplane increased in altitude to about 100 feet and then entered a roll. No mechanical malfunctions were noted with the airplane.
Factual narrative
On November 29, 2009, at 1512 Pacific standard time, a Mahre Starduster SA300, N480DM, collided with terrain while maneuvering near Zillah, Washington. The airline transport pilot, the sole occupant, was operating the airplane under the provisions of 14 Code of Federal Regulations Part 91. The pilot sustained serious injuries. The airplane was substantially damaged. Visual meteorological conditions prevailed and no flight plan was filed. A witness, who was a remote control (RC) airplane pilot, was with several other RC airplane pilots at an airstrip that was used for RC airplane flying. According to the witness, the accident pilot was also a RC airplane pilot. The accident pilot had been planning on performing a fly-by in the accident airplane. The pilot overflew the airstrip about 1,200 to 1,500 feet above ground level. The witness assumed the pilot was checking that no RC airplanes were flying at the time. The pilot then returned, flying from southeast to northwest, and performed a fly-by approximately 20 to 30 feet above ground level. At the end of the airstrip, the airplane increased in altitude to about 100 feet and then entered a barrel roll to the right. The airplane lost altitude during the barrel roll and then impacted the ground. The witness reported that the winds were calm. The pilot submitted a written statement. He reported that he was conducting a low-level, high-speed, pass over an airstrip. During the pass, he pulled up and rolled the airplane. He stated that about halfway through the roll, he lost sight of the horizon and he knew that he was in trouble. The airplane impacted the ground shortly thereafter. The pilot additionally reported that his airman medical application had been denied in 2000 due to Parkinson’s disease. He had undergone a medical procedure for the disease and was working with the Federal Aviation Administration to reissue his airman medical certificate. The pilot reported approximately 11,700 hours total flight time, with 400 hours in the accident airplane. No mechanical malfunctions were reported.
Aircraft
- Registration
- N480DM
- Reported as
- Mahre Starduster SA300
- Category
- Airplane, amateur-built
- Serial number
- 1454
- Airframe hours
- 439
- Engine
- Textron Lycoming GO-480-B1A6, 274 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- David Mahre
- Registered owner
- David Mahre
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Continuous airworthiness · April 1, 2009 · 13 hours before
- Departed
- YKM · Yakima, WA
- Destination
- YKM · Yakima, WA
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 58
- Injuries
- Serious
- Certificates
- Flight instructor, Airline transport, Commercial
- Airplane ratings
- Multi-engine land, Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Last flight review
- September 1, 1999
- Seat
- Rear
- Flight hours
- 11,700 total · 400 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 100° at 4 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 46 °F, dew point 34 °F
- Altimeter
- 30.30 inHg
- Observed at
- YKM, 15 nm away
Docket · 3
The files NTSB released with the investigation on February 12, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 580 KB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.